Finding the Fourth Proportional to 1,332,272,474.36, 1,838,728,325.96 and 767,649,217.40
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Solution
The fourth proportional to 1,332,272,474.36, 1,838,728,325.96 and 767,649,217.40 is: 1,059,466,728.92
Step by Step Solution
- Step 1: Write the proportion equation
1,332,272,474.36 : 1,838,728,325.96 = 767,649,217.40 : x - Step 2: Convert to fraction form
1,332,272,474.36/1,838,728,325.96 = 767,649,217.40/x - Step 3: Cross multiply
1,332,272,474.36x = 1,838,728,325.96 × 767,649,217.40 - Step 4: Simplify right side
1,332,272,474.36x = 1,411,498,360,434,406,144 - Step 5: Solve for x
x = 1,411,498,360,434,406,144/1,332,272,474.36 - Step 6: Final answer
x = 1,059,466,728.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.